app/models/social_account.rb
# == Schema Information
#
# Table name: social_accounts
#
# id :integer not null, primary key
# author_id :integer not null
# account_type :integer not null
# url :string(255) not null
#
class SocialAccount < ActiveRecord::Base
belongs_to :author, touch: true
enum account_type: [:git_hub, :facebook, :twitter, :linked_in]
validates :author, presence: true
validates :url, presence: true,
uniqueness: true,
format: { with: URI.regexp }
validates :account_type,
presence: true,
inclusion: { in: SocialAccount.account_types.keys },
uniqueness: { message: '%{value} is already used' }
end